Noarchive log mode
If the database is in noarchive log mode, online redo logs can (and will) be overwritten without making sure they are saved. This implies that a database cannot be recovered even if backups were made.
原帖由 edison_pong 于 2008-12-15 09:58 发表
Noarchive log mode
If the database is in noarchive log mode, online redo logs can (and will) be overwritten without making sure they are saved. This implies that a database cannot be recovered even if backups were made.